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Novel security inspection door

A security gate, a new type of technology, applied in the field of contraband detection, can solve the problems of long queues, high cost, inconvenient for the inspected, etc.

Active Publication Date: 2009-08-12
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in order to ensure safety, the current security inspection department needs to be equipped with two kinds of security inspection equipment at the same time, which not only costs a lot, but also takes up a lot of space, and many places cannot meet the requirements.
At the same time, it is inconvenient for the examinees. After passing this security check, they have to go through another security check, which takes up a lot of time and is easy to form a long queue.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A new type of security gate has the functions of metal detection and radiation detection at the same time, that is, it includes a metal detection system and a radiation detection system.

[0021] Such as figure 1 As shown, a set of metal detection systems are respectively installed on the two gateposts 1 . Such as figure 2 As shown, the metal detection system includes an excitation circuit 13, a large coil 2 for transmitting electromagnetic waves, a small coil 3 for receiving electromagnetic signals, a metal detection electronic instrument 14, a host computer 11, and an indication and alarm device 12. Among them, the metal detection electronic instrument 14 includes a reference signal comparison system, a data acquisition and processing system, and the like. Large and small coils 2 and 3 are installed on the doorpost and are on the same level. A plurality of small coils 3 on each gatepost 1 are placed in the large coil 2, and the number of the small coils 3 is deter...

Embodiment 2

[0024] The structure of the security gate provided in this embodiment is the same as that in Embodiment 1, except that the radiation detection system in this embodiment is a neutron detection system. Such as image 3 As shown, the neutron detector 4 is placed between the large and small coils 2, 3, and a shielding layer 15 is wrapped around the neutron detector. The shielding layer can be copper, aluminum or soft iron, and the preferred solution in this embodiment is to use soft iron as the shielding layer 15 .

Embodiment 3

[0026] The structure of the security gate provided in this embodiment is the same as in Embodiment 1, except that the radiation detection system in this embodiment is a gamma ray detection system. Such as Figure 4 , 5 As shown, the difference is that the gamma ray detector 4 is placed between the large and small coils 2 and 3, and is outside the plane of magnetic force lines between the large and small coils 2 and 3.

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Abstract

The invention belongs to the technical field of detection and in particular discloses a novel security inspection door. In the security inspection door, a radioactive detection system is arranged in a metal detection system, wherein a radioactive detector is arranged in a small coil or arranged between a big coil and the small coil and outside the magnetic lines between the big coil and the small coil or arranged between the big coil and the small coil and coated with a screening layer. The security inspection door smartly solves the problem of the interference of the radioactive detection system with and realizes the integration of the metal detection and radioactive detection of the security inspection door.

Description

technical field [0001] The invention belongs to the technical field of detection, and in particular relates to a contraband detection technology. Background technique [0002] After the "September 11 Incident", anti-terrorism has become an important issue in the international community. The rampant bombings and terrorist activities have made terrorists the key targets of the security departments of various countries. New heights, government agencies, public security organs, procuratorates, courts, prisons, detention centers, customs, airports, stations, stadiums, exhibition venues, entertainment venues, large gatherings and other places, as well as nuclear power plants, military industries and other factories or enterprises. Security gates are set up. At present, there are two types of security doors commonly used. One type of door-type metal detector has an electromagnetic field established in the door. It is a safe and effective security inspection device, such as variou...

Claims

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Application Information

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IPC IPC(8): G01V3/12G01T1/202G01T3/06G01T7/12
Inventor 王强王国保李学全高启刘志英郭凤美
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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